[INFO] cloning repository https://github.com/blt/rwlock_vs_mutex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blt/rwlock_vs_mutex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Frwlock_vs_mutex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Frwlock_vs_mutex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b00a87603670c0fa0c09fd0f2d036bc7ac4d1cc
[INFO] testing blt/rwlock_vs_mutex against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Frwlock_vs_mutex" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blt/rwlock_vs_mutex on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blt/rwlock_vs_mutex
[INFO] finished tweaking git repo https://github.com/blt/rwlock_vs_mutex
[INFO] tweaked toml for git repo https://github.com/blt/rwlock_vs_mutex written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/blt/rwlock_vs_mutex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 491ffa4ac85c9518e3aced515ea6186beb0e1fe80bdc32db8eba368099f539d8
[INFO] running `Command { std: "docker" "start" "-a" "491ffa4ac85c9518e3aced515ea6186beb0e1fe80bdc32db8eba368099f539d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "491ffa4ac85c9518e3aced515ea6186beb0e1fe80bdc32db8eba368099f539d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491ffa4ac85c9518e3aced515ea6186beb0e1fe80bdc32db8eba368099f539d8", kill_on_drop: false }`
[INFO] [stdout] 491ffa4ac85c9518e3aced515ea6186beb0e1fe80bdc32db8eba368099f539d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 352de83d6d1c282470f336ad95a6a09a88aec491f7cab8911faeac8ef9dd7015
[INFO] running `Command { std: "docker" "start" "-a" "352de83d6d1c282470f336ad95a6a09a88aec491f7cab8911faeac8ef9dd7015", kill_on_drop: false }`
[INFO] [stderr]    Compiling rwlock_vs_mutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "352de83d6d1c282470f336ad95a6a09a88aec491f7cab8911faeac8ef9dd7015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "352de83d6d1c282470f336ad95a6a09a88aec491f7cab8911faeac8ef9dd7015", kill_on_drop: false }`
[INFO] [stdout] 352de83d6d1c282470f336ad95a6a09a88aec491f7cab8911faeac8ef9dd7015
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2330f3faf8702e50439b8fd2b98d9801b74d480b98e724d8f8d909fe39205619
[INFO] running `Command { std: "docker" "start" "-a" "2330f3faf8702e50439b8fd2b98d9801b74d480b98e724d8f8d909fe39205619", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rwlock_vs_mutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.26s
[INFO] running `Command { std: "docker" "inspect" "2330f3faf8702e50439b8fd2b98d9801b74d480b98e724d8f8d909fe39205619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2330f3faf8702e50439b8fd2b98d9801b74d480b98e724d8f8d909fe39205619", kill_on_drop: false }`
[INFO] [stdout] 2330f3faf8702e50439b8fd2b98d9801b74d480b98e724d8f8d909fe39205619
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] de7c4197a33d58e554d3d2361c1f7a7a21e915a69f917585b4c5c760ff11fec8
[INFO] running `Command { std: "docker" "start" "-a" "de7c4197a33d58e554d3d2361c1f7a7a21e915a69f917585b4c5c760ff11fec8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rwlock_vs_mutex-1fcd3e61f6593a5f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "de7c4197a33d58e554d3d2361c1f7a7a21e915a69f917585b4c5c760ff11fec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7c4197a33d58e554d3d2361c1f7a7a21e915a69f917585b4c5c760ff11fec8", kill_on_drop: false }`
[INFO] [stdout] de7c4197a33d58e554d3d2361c1f7a7a21e915a69f917585b4c5c760ff11fec8